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HomeMy WebLinkAbout20190085 Ver 1_PCN Form Submission_20190117DWR MOM— of Water Resources Pre -Construction Notification (PCN) Form September 29, 2018 Ver 3 tial Review Has this project met the requirements for acceptance in to the review process?* r Yes r No Is this project a public transportation project?* G Yes r No Oiange only if needed. BIMS # Assigned 20190085 Is a payment required for this project?* r No payment required r Fee received r Fee needed - send electronic notification Reviewing Office* Asheville Regional Office - (828) 296-4500 Information for Initial Review 1a. Name of project: Bills Creek FD Creek Piping 1a. Who is the Primary Contact?* Larissa Coles 1b. Primary Contact Email:* larissa@odomengineering.com Date Submitted 1/17/2019 Nearest Body of Water Bills Creek Basin Broad Water Classification C Site Coordinates Version# * 1 What amout is owed?* r $240.00 r $570.00 Select Project Reviewer* Amy Annino:eads\amannino 1c. Primary Contact Phone:* (828)247-4495 Latitude: Longitude: 35.448631 -82.151508 FA. Processing Information u County (or Counties) where the project is located: Rutherford Is this project a public transportation project?* r Yes r No 1a. Type(s) of approval sought from the Corps: * Section 404 Permit (wetlands, streams and waters, Clean Water Act) r Section 10 Permit (navigable waters, tidal waters, Rivers and Harbors Act) 1b. What type(s) of permit(s) do you wish to seek authorization? rJ Nationwide Permit (NWP) F- Regional General Permit (RGP) F Standard (IP) 1c. Has the NWP or GP number been verified by the Corps? r Yes r No Nationwide Permit (NWP) Number: NWP Numbers (for multiple NWPS): 1d. Type(s) of approval sought from the DWR: W 401 Water Quality Certification - Regular W Non -404 Jurisdictional General Permit F Individual Permit 18 - Minor Discharges 1e. Is this notification solelyfor the record because written approval is not required? For the record only for DWR 401 Certification: For the record only for Corps Permit: r 401 Water Quality Certification - Express r Riparian Buffer Authorization 1f. Is this an after -the -fact permit application?* r Yes r No 1g. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts? r Yes r No 1g. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts? r Yes r No Acceptance Letter Attachment 1h. Is the project located in any of NC's twenty coastal counties? r Yes r No 1j. Is the project located in a designated trout watershed? O Yes r No B. Applicant Information 1d. Who is applying for the permit? F_ Owner W Applicant (other than owner) 1e. Is there an Agent/Consultant for this project? r Yes r No 2. Owner Information 2a. Name(s) on recorded deed: Bills Creek Fire Department 2b. Deed book and page no.: 1023/200 2c. Responsible party: 2d. Address Street Address 1118 Bills Creek Road Address Line 2 City Lake Lure Postal / Zip Cade 28746 2e. Telephone Number: (828)625-3353 2g. Email Address:* howelljammie@bellsouth.net 3. Applicant Information (if different from owner) 3a. Name: Larissa Coles State / Ffovinoe / Pagion NC Ceuntry USA 2f. Fax Number: r Yes r No r Yes r No 3b. Business Name: Odom Engineering, PLLC 3c. Address Street Address 169 Oak St. Address Line 2 aty Forest City Postal / Zip Code 28043 State / F rovince / Flegion NC Country USA 3d. Telephone Number: 3e. Fax Number: (828)247-4495 3f. Email Address:* larissa@odomengineering.com C. Project Information and Prior Project History 1. Project Information 1b. Subdivision name: t if appropriate) 1c. Nearest municipality/ town: Bills Creek 2. Project Identification 2a. Property Identification Number: 1648234 2c. Project Address Street Address 1118 Bills Creek Road Address Line 2 City Lake Lure Postal / Zip Code 28746 3. Surface Waters 3a. Name of the nearest body of water to proposed project:* Bills Creek 3b. Water Resources Classification of nearest receiving water:* C 3c. What river basin(s) is your project located in?* Broad 3d. Please provide the 12 -digit HUC in which the project is located. 030501050306 4. Project Description and History 2b. Property size: 5.42 State / F rovince / Piagion NC Churl* USA 4a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this application:* The site has been vacant until the recent construction of a newfire department facility. The land use in the vicinity of the project is residential and agricultural. 4b. Have Corps permits or DWR certifications been obtained for this project (including all prior phases) in the past?* r' Yes r No 6 Unknown 4d. Attach an 8 1/2X11 excerpt from the most recent version of the USGS topographic map indicating the location of the project site. (for DWR) Bills Creek USGS Map.pdf 370.6KB 4e. Attach an 8 1/2 X 11 excerpt from the most recent version of the published County NRCS Soil Survey map depicting the project site. (for DWR) 4f. List the total estimated acreage of all existing wetlands on the property: None 49. List the total estimated linear feet of all existing streams on the property: 360 LF of stream 4h. Explain the purpose of the proposed project:* The purpose of the project is to replace 1 existing culvert and install anew longer culvert to create access to the remainder of the property. 41. Describe the overall project in detail, including indirect impacts and the type of equipment to be used:* The proposed project consists of replacing one existing culvert with a new longer culvert. The culvert will impact an unnamed tributary of Bills Creek. The project will require the utilization of equipment such as a bulldozer, backhoe, excavator, front end loader, dump truck. Construction activities include grading, filling, installing erosion control measures, and seeding disturbed areas. 4j. Please upload project drawings for the proposed project. 18170BILLS CREEK FD CREEK PIPING.pdf 1.07MB 5. Jurisdictional Determinations 5a. Have the wetlands or streams been delineated on the property or proposed impact areas?* r Yes r No r Unknown Comments: 5b. If the Corps made a jurisdictional determination, what type of determination was made?* r Preliminary r Approved r Not Verified r Unknown r N/A Corps AID Number: 5c. If 5a is yes, who delineated the jurisdictional areas? Name (if known): Agency/Consultant Company: Other: 5d1. Jurisdictional determination upload 6. Future Project Plans 6a. Is this a phased project?* r Yes r No Are any other NWP(s), regional general permit(s), or individual permits(s) used, or intended to be used, to authorize any part of the proposed project or related activity? D. Proposed Impacts Inventory 1. Impacts Summary 1a. Where are the impacts associated with your project? (check all that apply): F Wetlands 9 Streams -tributaries r Buffers r- Open Waters r Pond Construction 3. Stream Impacts 3i. Total jurisdictional ditch impact in square feet: 0 3i. Total permanent stream impacts: 142 3i. Total stream and ditch impacts: 162 3i. Total temporary stream impacts: 20 3j. Comments: The project will permanently impact 142 linear feet of stream by replacing an existing culvert and adding a new culvert. The impacts are based on the centerline of the stream; therefore, the impacts are slightly larger than the length of the pipe. 3a. Reason for impact (?) 3b.lmpact type * 3c. Type of impact* * 3e. Stream Type *]3f. Type of 3g. S. width * 3h. Impact ❑ ��"me (?) Jurisdiction* length* S1 Culvert Replacement P Permanent Culvert Tributary Unnamed Tributa Perennial Corps2 21 Average (feet) (linear feet) S2 New Culvert Permanent Culvert Unnamed Tributary Perennial Corps2 121 Average (feet) (linearfeet) S3 Cofferdams Temporary Dewatering Unnamed Tributary Perennial Corps 2 20 Average (feet) (linearfeet) 3i. Total jurisdictional ditch impact in square feet: 0 3i. Total permanent stream impacts: 142 3i. Total stream and ditch impacts: 162 3i. Total temporary stream impacts: 20 3j. Comments: The project will permanently impact 142 linear feet of stream by replacing an existing culvert and adding a new culvert. The impacts are based on the centerline of the stream; therefore, the impacts are slightly larger than the length of the pipe. E. Impact Justification and Mitigation 1. Avoidance and Minimization 1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing the project: To minimize impacts, erosion control measures will be installed, construction activities will be limited to daylight hours, and adequate distance will be maintained between stream bank and construction. 1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques: Construction techniques taken to avoid or minimize the proposed impacts include limiting the area of disturbance and using more compact equipment when possible. Erosion control measures will also be installed to minimize impacts. The project has minimum grading and clean water has been diverted to minimize rainfall impact. 2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State 2a. Does the project require Compensatory Mitigation for impacts to Waters of the U.S. or Waters of the State? r Yes r No 2b. If this project DOES NOT require Compensatory Mitigation, explain why: F. Stormwater Management and Diffuse Flow Plan (required by DWR) 1. Diffuse Flow Plan 1a. Does the project include or is it adjacent to protected riparian buffers identified within one of the NC Riparian Buffer Protection Rules? f Yes r No If no, explain why: 2. Stormwater Management Plan 2a. Is this a NCDOT project subject to compliance with NCDOT's Individual NPDES permit NCS000250?* r^ Yes r No 2b. Does this project meet the requirements for low density projects as defined in 15A NCAC 02H .1003(2)? r Yes r No Comments: Project will consist of less than 24% built upon area G. Supplementary Information 1. Environmental Documentation 1a. Does the project involve an expenditure of public (federal/state/local) funds or the use of public (federal/state) land?* r Yes r No 2. Violations (DWR Requirement) u U 2a. Is the site in violation of DWR Water Quality Certification Rules (15A NCAC 2H .0500), Isolated Wetland Rules (15A NCAC 2H .1300), or DWR Surface Water or Wetland Standards or Riparian Buffer Rules (15A NCAC 2B.0200)?* r Yes r No I Cumulative Impacts (DWR Requirement) 3a. Will this project result in additional development, which could impact nearby downstream water quality?* f Yes r No 3b. If you answered "no," provide a short narrative description. The purpose of installing a culvert in this section of the creek is to enable the fire department to be able to use the remainder of their property. There are no plans for future development. 4. Sewage Disposal (DWR Requirement) 4a. Is sewage disposal required by DWR for this project?* r Yes r: No r N/A 5. Endangered Species and Designated Critical Habitat (Corps Requirement) 5a. Will this project occur in or near an area with federally protected species or habitat? r Yes r No 5b. Have you checked with the USFWS concerning Endangered Species Act impacts?* r Yes r No 5d. Is another Federal agency involved?* r Yes r No Se. Is this a DOT project located within Division's 1-8? r Yes r No 5f. Will you cut anytrees in order to conduct the work in waters of the U.S.? r Yes r No 5g. Does this project involve bridge maintenance or removal? r Yes r No 5h. Does this project involve the construction/installation of a wind turbine(s)?* r Yes r No r Unknown 51. Does this project involve (1) blasting, and/or (2) other percussive activities that will be conducted by machines, such as jackhammers, mechanized pile drivers, etc.? C Yes r No 5j. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat? email from Andrea Leslie, Mountain Habitat Conservation Coordinator with NC Wildlife Resources Commission stating that wild trout should not be impacted by this project. Consultation Documentation Upload 6. Essential Fish Habitat (Corps Requirement) 6a. Will this project occur in or near an area designated as an Essential Fish Habitat?* r Yes r No 6b. What data sources did you use to determine whether your site would impact an Essential Fish Habitat?* The receiving stream is classified as WS -1 according to NC Surface Water Classifications. 7. Historic or Prehistoric Cultural Resources (Corps Requirement) 7a. Will this project occur in or near an area that the state, federal or tribal governments have designated as having historic or cultural preservation status?* r Yes r No 7b. What data sources did you use to determine whether your site would impact historic or archeological resources?* https://savingplaces.org/national-treasures#.W-BxgJNKiUl https://archaeology.ncdcr.gov/abouttarchaeological-sites 7c. Historic or Prehistoric Information Upload 8. Flood Zone Designation (Corps Requirement) 8a. Will this project occur in a FEMA -designated 100 -year floodplain?* r Yes r No 8c. What source(s) did you use to make the floodplain determination?* NC Flood Maps M csi ellaneous Comments Miscellaneous attachments not previously requested. Signature * W By checking the box and signing below, I certify that: • I have given true, accurate, and complete information on this form; • I agree that submission of this PCN form is a "transaction" subject to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions Act"); • I agree to conduct this transaction by electronic means pursuant to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions Act"); • I understand that an electronic signature has the same legal effect and can be enforced in the same way as a written signature; AND • I intend to electronically sign and submit the PCN form. Full Name: Larissa Coles Signature CFIf�v Date 1/16/2019 January 16, 2019 Re: Pre -Construction Notification Form Agent Authorization Bills Creek Fire Department 1118 Bills Creek Road Lake Lure, NC 28746 I authorize Larissa Coles with Odom Engineering, PLLC to act as my agent for the submittal of the Pre -Construction Notification documents to NC Division of Water Resources. Regards, Jammie Howell 828-625-3353 Cell -fidy3pe The National Map Advanced Viewer OF CL X loll J jp �_ — --i � ��� •+. _ �J 1�t C' f {3 k 1/11/2019, 9:13:30 PM 1:36,112 0 0.25 0.5 1 mi 0 0.4 0.8 1.6 km USGS The National Map: National Boundaries Dataset, 3DEP Elevation USGS USGS The National Map: National Boundaries Dataset, 3DEP Elevation Program, Geographic Names Information System, National Hydrography Dataset, National Land Cover Database, National Structures Dataset, and National Transportation Dataset; USGS Global BILLS GREE GREE I� IIL L��71Z�1�11�11 All 601HIIII IrAk If 1: 1) K PIPING kI]IIIIH`Il�lld71�(��71ZKAIU1��Tl'� i"Is Nr MAO 11,311rvillip)] LEGEND UTILITY STRUCTURE EXISTING PROPOSED OVERHEAD ELECTRICAL XOHE OHE UNDERGROUND ELECTRICAL XUGE U GE NATURAL GAS XG G OVERHEAD TELEPHONE XOHT OH T FIBER OPTIC XFO FO SANITARY SEWER xs SS WATER xW W FORCEMAIN XFM FM CULVERT FIRE HYDRANT GATE VALVE GV D� GV N SEWER MANHOLE ® O POWER POLE PROPERTY LINE MAJOR CONTOURS MINOR CONTOURS — — — — 7-59 — — — — 750 CULVERT DRAINAGE AREA CHANNEL DRAINAGE AREA 0 0 0 0 0 0 0 0 TSP DRAINAGE AREA TEMPORARY SILT FENCE SF SF TEMPORARY DITCH/BERM TDB RD SITE �o GENERAL NOTES: SHEET INDEX TITLE COVER 1 CULVERT IMPACT OVERALL 2 CULVERT IMPACT 3 DETAILS 4 JOB NUMBER: 18170 0 Z 0 U N w W N 1 PO L0 w I HEREBY CERTIFY THAT THIS PLAN AND SPECIFICATION WAS PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT I AM A DULY REGISTERED ARCHITECT OR ENGINEER UNDER THE LAWS OF THE STATE OF NORTH CAROLINA AS SIGNIFIED BY MY HAND AND SEAL. .�`oNlCARp''%, �pFESsj y SE 29 w w hI SCALE: N.T.S. DATE: 11 /28/2018 DRAWN BY: LCT CHECKED BY: LMC PROJECT MGR: LMC SHEET: 1 OF 4 A M � o� N� �N x L R 1111 w° e r .Q LN �z �1 C a SCALE: N.T.S. DATE: 11 /28/2018 DRAWN BY: LCT CHECKED BY: LMC PROJECT MGR: LMC SHEET: 1 OF 4 A 18"Metal Pipe p of Pipe EI = 1096.2' 18"Metal Pipe T f P� EI = 1095 6' Crossing branch at 370.9' I 1 1 1 \ \ 1 op o pe Underground cable TV 9 9 E 397.9 4 N m 7g°46 o3 _ L — Underground AT&T / - O _— ` 098 BILLS CREEK FIRE DEPARTMENT I I-- � / =_ 10 i PARCEL ID: 1648234 09��'--�Z,\\ �\\ DB/PG 1032 / 200 \� \ e' ,� 5.42 ACRES EXIT. 30 RCI I I �' � � , \ \ 1096 G S C/- 70 0 94z 03 00 00 00 00 Q0 N 0 109,3 0 0 o o PROPOS D CO/�CREE HEI DWALL \ 7 092 — \ \ \ \ 7097 Crossing \ branch at 214.3' \ / J INV. =1�79.7( 308089,3 9 1090 3/4"EIP --- --- / Crossing --112 Sp � g at Stone S 2/ / I 3203 —_ �/ '9C�c / branch OP PROPOSED 121/LF 48"0 RCP 1.22% 0 BANKII 91088,7 —� f 9, �C) / at 11.3' SC �\ / / KPLACE EXIS4G 21' OF �6CMP ' / II — — — — — — — �Q � Stone Found v ITH PROPOSEDI 48"0 RCP 2' LF @ 1.22% _ 7088 \ / 3184 , \ \ h ` at Maples O 1086,2 \ / 3147 t0ke86.3 \ 10 a / TOP OF BANK / k — Sp,9C 1 3068 --r�� 9 , / O 1086.0 108 / \ 3206 � k 6 stak INV 1078.1 O 1086.7 3182 31 9 O 1086.7 1086,1 9 9 I 3128 -PROPOSED CONCRET HEADWALL 9 1085.7 Cq) 9 , e OGas 141086,0 799.2 stake / 3 ' � � 3071 � / / I 1/2„IRS �2°7 l� —� O ” / 9 � f'1 at 155.08' , 7 — _/ \\ \ 27 30 10 5, / ° 0 / �\ $I 1-v / C") / 1083 _ U s / " ° 0 3076 / IO 1082.5 �C'1v ('v/ V / 1 /2"IRS on west bank / N — 632810.071' / E 1061909.688' Control Corner / / 3/4"EIP / i 30 0 15 30 GRAPHIC SCALE JOB NUMBER: PB 18170 Ld EIR, Chann] o Crossing branch at 4 Tessn eer 344/629 60 90 I INCH = 30 FEET 0 z 0 IZ Df U V) W 0 W N I n U-) IY I HEREBY CERTIFY THAT THIS PLAN AND SPECIFICATION WAS PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT I AM A DULY REGISTERED ARCHITECT OR ENGINEER UNDER THE LAWS OF THE STATE OF NORTH CAROLINA AS SIGNIFIED BY MY HAND AND SEAL. N CARp����'. �()FES3j�� SEA 298/ (' z Z J EL o Q ^ I.L U bi Y� w Ld w� F-0 U — F- 0 0 0 U o a z LL.Z Q J Y wa- w = U w Y > / /'► V � W W J � U W J m bL M � 7 � O � N � V N z� O � • i L 7 U �-I ISI r L N �1 � z 3° SCALE: 1" = 30' DATE: 11/28/2018 DRAWN BY: LCT CHECKED BY: LMC PROJECT MGR: LMC SHEET: 2OF4 0 i JOB NUMBER: 18170 � I I w 17 L LE EXIST. 30" RCP / F- CL Df w / � O 0 O O O PROPOSED CONCRETE HEADWALL w N 14) � in I HEREBY CERTIFY THAT THIS PLAN AND SPECIFICATION WAS PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT I AM A DULY REGISTERED ARCHITECT OR ENGINEER UNDER THE LAWS OF THE STATE OF NORTH CAROLINA AS SIGNIFIED BY MY HAND AND SEAL. I N V. =1079.7 / / j `,,, c�OFESS/p� q SE TOP OF BANK I II Q LL. LTJ = Q / I I 3803 Lij F- 0 O 10887 9 0 S2 Lj— ,/ PROPOSED 121 LF 48"0 RCP 1.22 I I 1 SI I I \ -1 > 0 REPLACE EXISTING 21' OF 36' CMP `\ ,�� W WITH PROPOSED 48"0 RCP 21 LF @ 1.22% \ Y LLI \ W w / (n Ld 3184 J J O 1086 m m g b0 � / N � UN zN O INV. =1078.1 tw I Q OF CREEK \ TOP OF BANK \ \ SCALE: 1 - 10 DATE: 11 /28/2018 � / 10 0 5 10 20 30 DRAWN BY: LCT � CHECKED BY: LMC 3206 GRAPHIC SCALE 1 INCH = 10 FEET PROJECT MGR: LMC \ O 10 8 6 � 73182SHEET: PROPOSED CONCRETE HEADWALL \ 31 9 0 10867 3 OF 4 0 TEMPORARY 36"0 HDP DIVERSION PIPING ROADWAY JINTAKE HOSE A A PRECAST NEW PERMANENT -/ HEADWALL CULVERT PRECAST HEADWALL UPSTREAM DOWNSTREA COFFER DAM DEWATERING PUMP COFFER DAM DISCHARGE FILTER BAG TOTAL PERMANENT HOSE STREAM IMPACT AS MEASURED ALONG 2' STREAM CENTERLINE 149.23' PLAN VIEW 12' 12' 4' NOTE: CULVERT INSTALLATION TO BE COMPLETED DURING PERIODS WHERE RAIN IS NOT EXPECTED I I 1 3' .1 MATT & SEED SLOPE A -A DETAIL AFTER COMPLETION F PRECAST PRECAST HEADWALL p HEADWALL EXISTING CRE K \CREEK BED 48 RCP \ \ 140' NOTE: CONTRACTOR PLACE PIPE 12" BELOW EXISTING CREEK BED ON EXCAVATE UNSUITABLE SOIL AND INLET AND OUTLET SIDES. REPLACEWITH COMPACTED ABC PROFILE VIEW STONE -ENSURE A MINIMUM OF 8" COMPACTED ABC STONE. CULVERT CREEK CROSSING SECTION DETAIL N.T.S. CREEK BED PIPE CONSTRUCTION SCHEDULE 1. Obtain erosion control plan approval and other applicable permits from Army Corps of Engineers and NCDWQ. 2. Install temporary creek diversion piping snug against existing creek bank. 3. Install upstream coffer dam. 4. Install downstream coffer dam. 5. Excavate area for culvert as needed and install compacted ABC stone. 6. Install dewatering pump and filter as required to remove any seepage to allow culvert installation in the dry. 7. Install headwalls and new culvert. Ensure that inlet and outlet of the culvert is 2" below existing creek bed. 8. Backfill area over culvert. 9. Bank must be stabilized with erosion and sediment control measures in place between bank area and creek 10. Remove downstream coffer dam. 11. Remove upstream coffer dam and temporary diversion piping and redirect stream thru new culvert. GRAVEL BERM LOCATED ON DOWNH SIDE OF FILTER BAG GRAVEL BERM LOG ON DOWNHILL SIDE FILTER BAG HEAVY DUTY LIFTING STRAPS (RECOMMENDED) PLAN VIEW ELEVATION VIEW FILTER BAG DETA N.T.S. H2 CONSTRUCTION SCHEDULE 1. OBTAIN PLAN APPROVAL AND OTHER APPLICABLE PERMITS. 2. CLEAR AND GRUB SITE WORK AREA. 3. INSTALL PUMP AROUND SYSTEM IN CREEK. 4. INSTALL CULVERT AND HEADWALLS IN STREAM. BURY BOTTOM OF CULVERT 1 FOOT. 5. REMOVE PUMP AROUND SYSTEM. 6. COMPLETE GRADING. 7. PERMANENTLY STABILIZE DISTURBED AREA. GENERAL NOTES for TREE CUTTING / CLEARING: 1. ONLY DISTURB CLEAR OR GRADE AREAS NECESSARY FOR CONSTRUCTION. FLAG OR OTHERWISE DELINEATE AREAS NOT TO BE DISTURBED. EXCLUDE VEHICLES AND CONSTRUCTION EQUIPMENT FROM THESE AREAS TO PRESERVE NATURAL VEGETATION. 2. KEEP DIVERSIONS AND CHANNELS AND OTHER WATER CONVEYANCE MEASURES FREE OF SEDIMENT AT ALL TIMES. 3. ROUGHEN THE SURFACE OF ALL SLOPES DURING THE CONSTRUCTION OPERATION TO RETAIN WATER, INCREASE INFILTRATION, AND FACILITATE VEGETATION ESTABLISHMENT. 4. PERMANENTLY STABILIZE ALL GRADED AREAS IMMEDIATELY AFTER FINAL GRADING IS COMPLETED ON EACH AREA. 2:1 OR STEEPER SLOPES MUST HAVE TEMPORARY GROUND COVER WITHIN 7 DAYS. 3:1 SLOPES OR FLATTER SLOPES MUST HAVE TEMPORARY GROUND COVER WITHIN 14 DAYS. MAINTENANCE PLAN 1. ALL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CHECKED FOR STABILITY AND OPERATION FOLLOWING EVERY RUNOFF -PRODUCING RAINFALL BUT IN NO CASE LESS THAN ONCE EVERY WEEK. ANY NEEDED REPAIRS WILL BE MADE IMMEDIATELY TO MAINTAIN ALL PRACTICES AS DESIGNED. 2. SEDIMENT WILL BE REMOVED BEHIND THE SEDIMENT FENCE WHEN IT BECOMES ABOUT 0.5' DEEP AT THE FENCE. THE SEDIMENT FENCE WILL BE REPAIRED AS NECESSARY TO MAINTAIN A BARRIER. 3. ALL SEEDED AREAS WILL BE FERTILIZED, RESEED AS NECESSARY ACCORDING TO SPECIFICATIONS IN THE VEGETATIVE PLAN TO MAINTAIN A VIGOROUS, DENSE, VEGETATIVE COVER. �W1� H1 12" �'J;20- f FRONT D 6 NOTES: 1. ALL CONCRETE SHALL BE 4000 PSI MINIMUM. 2. REINFORCEMENT STEEL SHALL MEET ASTM -A615 GRADE 60 WITH 2" MINIMUM CLEARANCE. SIDE INSIDE PIPE 7 � ^ O � N � UN DIAMETER REINF. LBS. W1 W2 H1 H2 D E 12", 15", 18" N0. 4 2060 44" 64" 23" 42 1 /2" 18 112" 27" 21 ", 24" N 0. 4 3100 50" 85" 31 " 56" 24" 33" 27", 30", 36" N0. 4 5940 64" 108" 41" 72" 36" 49" 42", 48" N0. 4 8040 79" 150" 52" 79" 40" 64" 54", 60", 72" N0. 4, N0. 5 16000 105" 161" 60" 90" 48" 90" PRECAST CONCRETE HEADWALL JOB NUMBER: 18170 W H a Z O H U N W 0 iii-i�i�i•i�i i I HEREBY CERTIFY THAT THIS PLAN AND SPECIFICATION WAS PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND THAT I AM A DULY REGISTERED ARCHITECT OR ENGINEER UNDER THE LAWS OF THE STATE OF NORTH CAROLINA AS SIGNIFIED BY MY HAND AND SEAL. o``�"\A 111CARp'''., �pFESsjO� y' SE 29 y W W U Y W W V N J _j W hI a z 0 Y W W IY U W W Fn SCALE: N.T.S. J DATE: 11/28/2018 1 I DRAWN BY: LCT I CHECKED BY: LMC PROJECT MGR: LMC SHEET: 4OF4 A 7 � ^ O � N � UN y x L r SCALE: N.T.S. J DATE: 11/28/2018 1 I DRAWN BY: LCT I CHECKED BY: LMC PROJECT MGR: LMC SHEET: 4OF4 A